Pseudobulb
Специальные термины
Thickened above-ground stem of many epiphytic orchids, varying in shape from elongated spindle-shaped to bulbously swollen, often covered with longitudinal folds or grooves.
Glossary of terms
A reference section with categories and short explanations.
Petals
Специальные термины
Modified apical leaves of higher plants that form the corolla of a flower.
Perennial
Специальные термины
A plant that lives for more than two years.
Perianth
Специальные термины
The outer part of the flower. It can be double (divided into calyx and corolla) or simple (when the elements are not visually distinguishable).
Pistil
Специальные термины
The central part of the female bisexual flower, containing the ovules from which seeds develop. It consists of the ovary, style and stigma.
Pricking out
Специальные термины
Transplanting of vegetable, fruit, and ornamental crops at a young age, for example, from seedbeds into individual pots.
pH value
Специальные термины
Determines the concentration of hydrogen ions. A value of 7 indicates soil neutrality. Lower indicates acidity, higher indicates alkalinity. Most plants prefer a pH between 5.5 and 6.5. The pH can be easily determined with litmus paper (so…
Pinching
Специальные термины
Removal of the soft apical tips of shoots with the fingers. This promotes better branching of the plant and bushier growth.
Prostrate plants
Специальные термины
Low-growing plants that form a carpet-like covering on the soil.
Phylloclades
Специальные термины
A modified flattened shoot of a leaf-like form, located in the axil of a small membranous leaf (for example, in Asparagus).
Photosynthesis
Специальные термины
The process of forming carbohydrates in plant cells from carbon dioxide and water using light energy in the presence of chlorophyll.